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Finding the Fourth Proportional to 14,528.66, 21,774.69 and 7,864.88

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Solution

The fourth proportional to 14,528.66, 21,774.69 and 7,864.88 is: 11,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,528.66 : 21,774.69 = 7,864.88 : x
  2. Step 2: Convert to fraction form
    14,528.66/21,774.69 = 7,864.88/x
  3. Step 3: Cross multiply
    14,528.66x = 21,774.69 × 7,864.88
  4. Step 4: Simplify right side
    14,528.66x = 171,255,215.01
  5. Step 5: Solve for x
    x = 171,255,215.01/14,528.66
  6. Step 6: Final answer
    x = 11,787.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.